Parallel Lines and transversals

Front

What is the relationship between corresponding angles when two parallel lines are cut by a transversal?

Back

Corresponding angles are equal.

Front

Define alternate interior angles.

Back

Alternate interior angles are pairs of angles that lie between the two lines and on opposite sides of the transversal. They are equal when the lines are parallel.

Front

What are consecutive interior angles?

Back

Consecutive interior angles are pairs of angles that lie on the same side of the transversal and between the two lines. They are supplementary when the lines are parallel.

Front

What is the relationship between vertical angles?

Back

Vertical angles are equal.

Front

If angle 4 measures 55 degrees, what is the measure of angle 8 if the lines are parallel?

Back

Angle 8 measures 55 degrees.

Front

Identify the angle relationship: ∠1 and ∠5 when two parallel lines are cut by a transversal.

Back

∠1 and ∠5 are corresponding angles.

Front

If ∠2 is 135 degrees, what is the measure of ∠6?

Back

∠6 is also 135 degrees.

Front

What is the sum of consecutive interior angles?

Back

The sum of consecutive interior angles is 180 degrees.

Front

If y + 20 = 30, what is the value of y?

Back

y = 10.

Front

What is the measure of angle 4 if angle 5 is 120 degrees and the lines are parallel?

Back

Angle 4 is 120 degrees.